Fred worked these hours during the week: 8, 4 1/2, 3 3/4, 7 1/2, 4 3/4. if he is paid $5.15 per h, how much did he earn?
$133.90
$146.78
$144.20
$139.05

He earns $146.78

B is correct.

Step-by-step explanation:

Fred worked these hours:

He is paid $5.15 per hour.

First we find total number of hours he worked.

So, we will add all the value

First we change mixed fraction to fraction

Fred worked total 28.5 hours. He is paid $5.15 per hour.

Total earn = Total number of hours x Rate per hour

Hence, He earns $146.78

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752

answer: 100

step-by-step explanation: